If you are white, you could have. If you are black, you risked being arrested for resisting, or might have become scared and started to run if the cops started ordering you to stop, and then you might have taken a bullet.
I don't blame the kids for feeling intimidated. If they had resisted based on their rights, people on here would be calling them stupid and saying they should have cooperated and none of that would have happened.
If these facts reported are correct, this was a dumb move on the cops' part. Perhaps they did tell the kids with receipts they could go, and only detained the ones with no receipts, but their friends may have refused to leave them. Or maybe the kids did mouth off and got out their video phones right away.
We weren't there, so I hope they can resolve this without riots. The poor IHOP franchise will probably be targeted, which appears to have had no responsibility for this poor police work.
They must have watched Chris Rock's "How Not To Get Your Ass Kicked By the Police".